Photometric and kinematic studies of open star clusters I. NGC 581 (M 103)

被引：0
|
作者：
Sanner, J
Geffert, M
Brunzendorf, J
Schmoll, J
机构：
[1] Univ Bonn, Sternwarte, D-53121 Bonn, Germany
[2] Thuringer Landessternwarte Tautenburg, D-07778 Tautenburg, Germany
[3] Astrophys Inst Potsdam, D-14482 Potsdam, Germany
来源：
ASTRONOMY & ASTROPHYSICS | 1999年 / 349卷 / 02期
关键词：
Galaxy : open clusters and associations : individual :; NGC 581 (M 103); astrometry; stars : kinematics; stars : Hertzsprung-Russel (HR) and C-M diagrams; stars : luminosity function; mass function;
D O I：
暂无
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We present CCD photometry and a proper motion study of the young open star cluster, NGC 581 (M 103). Fitting isochrones to the colour magnitude diagram, we found an age of 16 +/- 4 Myr and a distance of roughly 3 kpc for this cluster. The proper motion study identifies 77 stars of V = 14.5 mag or brighter to be cluster members. We combine membership determination by proper motions and statistical field star subtraction to derive the IMF of the cluster and find a quite steep slope of r = -1.80.
引用
收藏
页码：448 / 456
页数：9
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